lively.lang/doc/events.md

JavaScript utils providing useful abstractions for working with collections, functions, objects.

## events.js


* A simple node.js-like cross-platform event emitter implementation that can
* be used as a mixin. Emitters support the methods: `on(eventName, handlerFunc)`,
* `once(eventName, handlerFunc)`, `emit(eventName, eventData)`,
* `removeListener(eventName, handlerFunc)`, `removeAllListeners(eventName)`
* Example:
* var emitter = events.makeEmitter({});
* var log = [];
* emitter.on("test", function() { log.push("listener1"); });
* emitter.once("test", function() { log.push("listener2"); });
* emitter.emit("test");
* emitter.emit("test");
* log // => ["listener1","listener2","listener1"]
* emitter.removeAllListeners("test");
* emitter.emit("test");
* log // => is still ["listener1","listener2","listener1"]


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